Those are that Windows translates into readable paths and permissions (e.g., hex(2):25,00,53... translates to %SystemRoot%\System32\svchost.exe ). They are safe and required.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc\Security] "Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02, 00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00, 00,00,02,00,78,00,05,00,00,00,00,00,14,00,8d,00,02,00,01,01,00,00,00,00,00, 05,0b,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00, 20,02,00,00,00,00,14,00,8d,00,02,00,01,01,00,00,00,00,00,05,04,00,00,00,00, 00,18,00,9d,00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,20,02,00,00,00,01, 01,00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00 download wscsvc.reg for windows 10
(for Windows 10, 64-bit and 32-bit):